ECONOMICAL TRANSDUCERS OF ENVIRONMENTAL PARAMETERS TO A FREQUENCY FOR THE END DEVICES OF IoT

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The possibility of using a unijunction transistor in the relaxation generator circuit as a highly sensitive frequency transducer of temperature, light, magnetic field, pressure, concentration of gases and radiation level as a sensor for the end-devices of IoT is experimentally investigated. Unlike the developed modern special transistor sensors with frequency output, new designs of frequency conventers are made on a standart elemental base with a minimum number of elements.